Finding the Fourth Proportional to 111,978,991.50, 168,034,622.13 and 47,278,608.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111,978,991.50 : 168,034,622.13 = 47,278,608.54 : x
2. Step 2: Convert to fraction form
   111,978,991.50/168,034,622.13 = 47,278,608.54/x
3. Step 3: Cross multiply
   111,978,991.50x = 168,034,622.13 × 47,278,608.54
4. Step 4: Simplify right side
   111,978,991.50x = 7,944,443,120,851,091
5. Step 5: Solve for x
   x = 7,944,443,120,851,091/111,978,991.50
6. Step 6: Final answer
   x = 70,945,835.59